/**
 * Retries an asynchronous operation with exponential backoff.
 * @param operation The async function to retry.
 * @param maxAttempts The maximum number of attempts.
 * @param initialDelay The initial delay in milliseconds.
 * @returns A promise that resolves with the operation result or rejects if all attempts fail.
 */
export declare function retry<T>(operation: () => Promise<T>, maxAttempts: number, initialDelay: number): Promise<T>;